computersoftwareitstypes-150210102316-conversion-gate02 (1).pptx

LEC

1. Computer Software & its Types Instructor : ifra Ghaffar Course : Applications Of ICT

2. Software “A set of instructions given to the computer to solve a problem is called Software .” “Software is a single/collection of programs that performs a particular task.” Software is also called Program . Different software's are used to solve different problems. 2

3. Types Of Software There are two types of software on the basis of their functionality: ▫ System Software ▫ Application Software 3

4. Application Software Application Software includes programs that do real work for user. Application Software is created to perform specific tasks on computer . People use application software according to their need. A large Numbers of application software is available . Also known as Applicati on package . 4

5. Examp l es ▫ Microsoft Word ▫ Microsoft Excel ▫ Photoshop etc 5

6. Custom ized software Custom ized software i s software that is specially developed for some specific organization or other user. it is Developed to meet exact requirement of customer. It can be developed by Single Programmer or team of Programmer. A software developed for particular university. 6

7. Packaged Software Packaged Software is a Software that is developed for sale to the general public. A lso called off the shell program It help peoples to perform daily activities. Normally developed by expert programmers. Word processor such as MS word Spreadsheet such as Excel Graphics software such as ADOBE PHOTOSHOP .

8. System Software System Software is set of programs to control and manage the operations of a computer hardware. It enables application programs to execute properly. It consists of the basic operations as follows: ▫ Saving data on disk ▫ Making computer to work for us ▫ Printing a document etc. 7

9. Examp l es Examples of System Software's are: ▫ Operating Systems ▫ Utility Programs ▫ Device Drivers 8

10. Operating System ( OS ) An operating system (OS) is a collection of software that manages computer hardware resources . Act as an interface between computer user and hardware. The operating system is a vital component of the system software in a computer system. Other software run through it . Example: Windows MAC OS, Linux 9

11. Utility program Utility program is a system software that is to maintain the health of your computer system or to diagnose problems . It performs a specific task related to the management of computer functions resources and files . Improve Performance Protect Computer/ Anti Virus Backup Software 10

12. Device Driver A Device Driver is a computer program that operates or controls a particular type of device that is attached to a computer. Allows the computer operating system to communicate with hardware devices ▫ Like keyboard mouse 11